code: def qnormal(mu, sigma, q, random_state):
      """
      mu: float or array_like of floats
      sigma: float or array_like of floats
      q: sample step
      random_state: an object of numpy.random.RandomState
      """
      return np.round(normal(mu, sigma, random_state) / q) * q
  
file_path: nni/nni/parameter_expressions.py
imports: import numpy
label_desc: Use image node_id 8 for calling a global function with example usage: qnormal(mu, sigma, q, random_state) and returns: unknown